This is an assisting patch which is implemented to address review comment to switch std::list<Name> to OmpObjectlist from https://reviews.llvm.org/D142722.
Also addressed a semantic check https://github.com/llvm/llvm-project/issues/61161 OpenMP 5.2 standard states that only pointer variables (C_PTR, Cray pointers, POINTER or ALLOCATABLE items) can appear in SIMD aligned clause (section 5.11). And not to allow common block names on an ALIGNED clause.
Reviewed By: kiranchandramohan
Differential Revision: https://reviews.llvm.org/D152637
